<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true" :model="filters">
				<el-form-item>
					<el-input v-model="filters.keyword" placeholder="关键字"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-on:click="search">查询</el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

    <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">

      <!--这是elementui提供的选择框，此选择框可以多选-->
      <el-table-column type="selection" width="55">
      </el-table-column>

      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="120" >
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="100" >
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>
        <!--scope：获取这一行的所有字段数据-->
        <template scope="scope">
          <span style="color: green" v-if="scope.row.state === 1">开启</span>
          <span style="color: red" v-else-if="scope.row.state === 0">关闭</span>
          <span v-else>未知</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="负责人" width="120" >
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" min-width="180" >
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

		<!--工具条-->
		<el-col :span="24" class="toolbar">
      <!--
        disabled：是否不可点击
          true：不可点击
          false：可点击
      -->
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination
          layout="total, sizes, prev, pager, next"
          @current-change="handleCurrentChange"
          :current-page="currentPage"
          :page-size="pageSize"
          :total="total"
          @size-change="handleSizeChange"
          :page-sizes="[5, 10, 15, 30, 50]"
          style="float:right;">
			</el-pagination>
		</el-col>

		<!--编辑界面
		    v-model：在1.X的时候是控制此标签是否展示，但是2.X之后是双向绑定
		    :rules="editFormRules"：表单校验规则绑定那个规则对象
		      prop="name"：此字段运用表单校验规则中的那个规则
		-->
		<el-dialog :title="title" :visible.sync="editFormVisible" :close-on-click-modal="false">
			<el-form :model="editForm" label-width="80px" :rules="editFormRules" ref="editForm">
				<el-form-item label="部门名称" prop="name">
					<el-input v-model="editForm.name" auto-complete="off"></el-input>
				</el-form-item>
        <el-form-item label="部门编号" prop="sn">
          <el-input v-model="editForm.sn" auto-complete="off"></el-input>
        </el-form-item>
				<el-form-item label="是否启用">
					<el-radio-group v-model="editForm.state">
						<el-radio class="radio" :label="1">启用</el-radio>
						<el-radio class="radio" :label="0">禁用</el-radio>
					</el-radio-group>
				</el-form-item>
        <el-form-item label="部门经理">
          <el-select v-model="editForm.manager" clearable value-key="id" placeholder="请选择">
            <!--
              :key：必须指定为你每条数据中的唯一字段
              :label：用户选择之后在下拉框中展示的值
              :value：用户选中值之后要提交时，使用那个字段提交
            -->
            <el-option
                v-for="item in cities"
                :key="item.id"
                :label="item.username"
                :value="item">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="上级部门">
          <!--
            el-cascader：级联选择器框
            options：级联的数据，指向模型层的options字段
          -->
          <el-cascader
              v-model="editForm.parent"
              :options="options"
              :props="{ checkStrictly: true, value:'id', label:'name' }"
              clearable></el-cascader>
        </el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="editFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="editSubmit" :loading="editLoading">提交</el-button>
			</div>
		</el-dialog>

	</section>
</template>

<script>
	import util from '../../common/js/util'
	//import NProgress from 'nprogress'
	import { getDepartmentListPage, removeDepartment, batchRemoveDepartment, editDepartment, addDepartment } from '../../api/api';

	export default {
		data() {
			return {
        // 上级部门的级联集合数据
        options: [],
				filters: {
					keyword: ''
				},
				departments: [],
				total: 0,
				currentPage: 1,
				pageSize: 5,
				listLoading: false,
				sels: [],//列表选中列
        title:"",
				editFormVisible: false,//编辑界面是否显示
				editLoading: false,
        // 表单校验规则
				editFormRules: {
					name: [
            // 为空校验
						{ required: true, message: '请输入部门名称', trigger: 'blur' }
					],
          sn: [
            // 为空校验
            { required: true, message: '请输入部门编号', trigger: 'blur' }
          ]
				},
				//编辑界面数据
				editForm: {
          id:null,
          sn:"",
          name:"",
          state:0,
          manager:{},
          parent:[]
				},
        cities: []
			}
		},
		methods: {
      // 获取部门树数据
      getDepartmentTree(){
        this.$http.get("/department/tree")
          .then(result=>{
            this.options = result.data;
          })
      },
      getEmployees(){
        this.$http.get("/employee")
          .then(result=>{
            this.cities = result.data;
          })
      },
      // 高级查询函数
      search(){
        // 如果是高级查询，为了避免用户的数据不够展示，我们需要初始化页码为1，不管有没有其他页数据，我们默认展示第一页
        this.currentPage = 1;
        // 页面初始化完成之后，直接调用查询列表数据函数即可
        this.getDepartments();
      },
			handleCurrentChange(val) {
        // 当用户点击页面的时候，我们需要同步将模型层中的当前页面字段的值改为用户选中的值
				this.currentPage = val;
				this.getDepartments();
			},
      handleSizeChange(val) {
        // 当用户点击页面的时候，我们需要同步将模型层中的当前页面字段的值改为用户选中的值
        this.currentPage = 1;
        this.pageSize = val;
        this.getDepartments();
      },
			//获取部门列表
			getDepartments() {
        // 封装请求参数
				let para = {
					currentPage: this.currentPage,
					pageSize: this.pageSize,
					keyword: this.filters.keyword
				};
        // 开启列表忙等
				this.listLoading = true;
				// 发起Axios请求
        this.$http.post("/department", para)
          .then(result=>{
            // 0.关闭忙等
            this.listLoading = false;
            // 1.给列表模型层对象赋值
            this.departments = result.data.rows;
            // 2.给total赋值
            this.total = result.data.total;
          })
          .catch(result=>{
            this.$message({
              message: '系统繁忙，请重试！',
              type: 'error'
            });
          })
			},
			//删除
			handleDel: function (index, row) {
				this.$confirm('确认删除该记录吗?', '提示', {
					type: 'warning'
				}).then(() => { // 点击确定的时候进入then
          // 1.开启列表忙等
					this.listLoading = true;
          // 2.发送Axios请求
          this.$http.delete("/department/"+row.id)
            .then(result=>{
              // 1.关闭忙等框
              this.listLoading = false;
              if(result.data.success){ // 绝对删除成功
                this.$message({
                  message: result.data.message,
                  type: 'success'
                });
              }else { // 不一定删除成功，我们也不知道删除成功没有
                this.$message({
                  message: result.data.message,
                  type: 'error'
                });
              }
              // 3.改变当前页页码
              this.currentPage = 1;
              // 4.调用查询列表函数
              this.getDepartments();
            })
            .catch(result=>{
              this.listLoading = false;
              this.$message({
                message: '系统繁忙，请重试！',
                type: 'error'
              });
            })
				}).catch(() => {
          // 取消进catch
				});
			},
			//显示编辑界面
			handleEdit: function (index, row) {
        debugger;
        this.title = "编辑";
        // 1.弹出编辑框
				this.editFormVisible = true;

        // 2.克隆对象到我们模型层的对象中
				this.editForm = Object.assign({}, row);
        // 3.修改parent字段为[2,5],用于回显 /2/5/6
        let arr = this.editForm.dirPath.split("/"); // ['', '2', '5']
        let echoArr = [];
        for(var i = 1;i < arr.length - 1;i++){
          // 将字符Id,转换为int类型放入到新数组中
          echoArr.push(parseInt(arr[i]));
        }
        // 4.将新数组赋值给this.editForm.parent字段
        this.editForm.parent = echoArr;
			},
			//显示新增界面
			handleAdd: function () {
        this.title = "新增";
				this.editFormVisible = true;
				this.editForm = {
					id:null,
					sn:"222",
					name:"啊啊啊",
					state:0,
          manager:{},
          parent:{}
				};
			},
			//编辑
			editSubmit: function () {
        // 主动开启表单校验
				this.$refs.editForm.validate((valid) => {
					if (valid) {
						this.$confirm('确认提交吗？', '提示', {}).then(() => {
              debugger;
              // 1.开启按钮忙等
							this.editLoading = true;
              // 2.从模型层中的editForm对象中克隆一个新对象
              let para = Object.assign({}, this.editForm);
              // 3.当用户选择了上级部门，那么我们才做数据转换操作
              if (para.parent){
                // 3.1.获取到用户选择的上级部门数组中的最后一个数据，封装到对象中，赋值给parent字段
                para.parent = {id:para.parent[para.parent.length - 1]}
              }
              // 4.发送Axios请求
              this.$http.put("/department", para)
                  .then(result=>{
                    // 1.关闭按钮忙等
                    this.editLoading = false;
                    // 2.关闭模态框
                    this.editFormVisible = false;
                    if(result.data.success){ // 新增/修改成功
                      this.$message({
                        message: result.data.message,
                        type: 'success'
                      });
                    }else { // 不一定新增/修改成功，我们也不知道新增/修改成功没有
                      this.$message({
                        message: result.data.message,
                        type: 'error'
                      });
                    }
                    // 3.改变当前页页码
                    this.currentPage = 1;
                    // 4.调用查询列表函数
                    this.getDepartments();
                  })
                  .catch(result=>{
                    this.editLoading = false;
                    this.$message({
                      message: '系统繁忙，请重试！',
                      type: 'error'
                    });
                  })
						});
					}
				});
			},
			selsChange: function (sels) {
				this.sels = sels;
			},
			//批量删除
			batchRemove: function () {
        // 获取用户选中行的所有Id
				var ids = this.sels.map(item => item.id);
				this.$confirm('确认删除选中记录吗？', '提示', {
					type: 'warning'
				}).then(() => {
          // 开启列表忙等
					this.listLoading = true;
					// 发送Axios请求
          this.$http.patch("/department", ids)
          .then(result=>{
            // 1.关闭忙等框
            this.listLoading = false;
            if(result.data.success){ // 绝对删除成功
              this.$message({
                message: result.data.message,
                type: 'success'
              });
            }else { // 不一定删除成功，我们也不知道删除成功没有
              this.$message({
                message: result.data.message,
                type: 'error'
              });
            }
            // 3.改变当前页页码
            this.currentPage = 1;
            // 4.调用查询列表函数
            this.getDepartments();
          })
          .catch(result=>{
            this.listLoading = false;
            this.$message({
              message: '系统繁忙，请重试！',
              type: 'error'
            });
          })

				}).catch(() => {

				});
			}
		},
		mounted() {
      // 获取部门列表数据
			this.getDepartments();
      // 获取员工列表数据
      this.getEmployees();
      // 获取部门树数据集合
      this.getDepartmentTree();
		}
	}

</script>

<style scoped>

</style>